Fix inline PDF preview in expensereport

[rqi14]

In expensereport, it requires imagick and ghostscript to convert pdf and show an inline preview. This pull request is to include the installation and configuration of these packages

[tuxgasy]

I use expense reports module. I can preview PDF inline (without download it). As in other documents (order, invoice...), this feature doesn't require imagick/ghostscript.

[rqi14]

I use expense reports module. I can preview PDF inline (without download it). As in other documents (order, invoice...), this feature doesn't require imagick/ghostscript.

There are two places where pdf inline preview is available. One is the list of uploaded files at the bottom of the page. In this one imagick is not needed for preview. The other one is within each row of the expense table. At the most right hand side there should be a clickable icon to preview the file associated with the row. In the dolibarr code, it uses imagick to convert the pdf to png and use the png as the icon. If it cannot do that, it skips the div where the preview link sits in.

[rqi14]

I use expense reports module. I can preview PDF inline (without download it). As in other documents (order, invoice...), this feature doesn't require imagick/ghostscript.

You can find the code to call imagick here https://github.com/Dolibarr/dolibarr/blob/56c198992dce8c29880e84ec6e142e697df6c72d/htdocs/expensereport/card.php#L2210

dol_convert_file requires imagick and ghostscript

[tuxgasy]

I use expense reports module. I can preview PDF inline (without download it). As in other documents (order, invoice...), this feature doesn't require imagick/ghostscript.

You can find the code to call imagick here https://github.com/Dolibarr/dolibarr/blob/56c198992dce8c29880e84ec6e142e697df6c72d/htdocs/expensereport/card.php#L2210

dol_convert_file requires imagick and ghostscript

Ok I have never used this part.

[rqi14]

I'm afraid this will make the image bigger. Maybe it's better to document it or add an example. Let's see.

Here is an example (screenshots). Previews available at the end of each row and they are clickable.

[tuxgasy]

I'm afraid this will make the image bigger. Maybe it's better to document it or add an example. Let's see.

Here is an example (screenshots). Previews available at the end of each row and they are clickable.

I'm talking about the docker image size. It's already very big. I prefer not to increase it further.

[rqi14]

I'm afraid this will make the image bigger. Maybe it's better to document it or add an example. Let's see.

Here is an example (screenshots). Previews available at the end of each row and they are clickable.

I'm talking about the docker image size. It's already very big. I prefer not to increase it further. It does increase the size of the image by 200MB ish.

dolibarr-dolibarr                          latest               e7e6edc449ac   3 days ago      978MB
tuxgasy/dolibarr                           latest               e84790d5bec8   2 weeks ago     774MB

It is true that the size gets bigger. But it is necessary for dolibarr to function normally. Alternatively, if you don't wish to increase the image, maybe it can be turned into a separate Dockerfile that users could build based on your image to have this functionality working.

[rqi14]

I'm afraid this will make the image bigger. Maybe it's better to document it or add an example. Let's see.

Here is an example (screenshots). Previews available at the end of each row and they are clickable.

I'm talking about the docker image size. It's already very big. I prefer not to increase it further.

Here is an example of the Dockerfile

FROM tuxgasy/dolibarr:latest
RUN apt-get update && apt-get install -y libmagickwand-dev ghostscript  --no-install-recommends
RUN pecl install imagick
RUN docker-php-ext-enable imagick
RUN rm -rf /var/lib/apt/lists/*
COPY update-imagemagick-policy.sh /usr/local/bin/update-imagemagick-policy.sh
RUN chmod +x /usr/local/bin/update-imagemagick-policy.sh
RUN /usr/local/bin/update-imagemagick-policy.sh

[tuxgasy]

You add an example in examples folder.

[Vaadasch]

Hi @rqi14 I wonder about the usefulness of these tiny thumbnails from documents that need to be opened to be able to read anything. Adding 200MB just for that does not seems wise for me

[rqi14]

Hi @rqi14 I wonder about the usefulness of these tiny thumbnails from documents that need to be opened to be able to read anything. Adding 200MB just for that does not seems wise for me

You can click on these thumbnails and previews will show. It is convenient to check each line has correct receipt attached.

[Vaadasch]

I think it would be better to change the Dolibarr code. You said that "If it cannot do that, it skips the div where the preview link sits in." It might be possible to create the div with a :camera: icon without the need to generate a png that isn't readable anyway ? Will that be sufficient ?

[rqi14]

I think it would be better to change the Dolibarr code. You said that "If it cannot do that, it skips the div where the preview link sits in." It might be possible to create the div with a 📷 icon without the need to generate a png that isn't readable anyway ? Will that be sufficient ?

I agree the thumbnail here is weird. The preview functionality is available without the thumbnail for the linked files. Your suggestion could be implemented. I am not sure what kind of fix it would be, as technically it is not a bug. It is something I cannot really do because I am not too familiar with php and html. I can sure read it a little bit but not code such a complex page.

[Vaadasch]

You can find the code to call imagick here https://github.com/Dolibarr/dolibarr/blob/56c198992dce8c29880e84ec6e142e697df6c72d/htdocs/expensereport/card.php#L2210

Two lines before this line, did you try to set MAIN_DISABLE_PDF_THUMBS to 1 to see what it does ?

Edit : it does nothing more, i've created a PR.

[rqi14]

You can find the code to call imagick here https://github.com/Dolibarr/dolibarr/blob/56c198992dce8c29880e84ec6e142e697df6c72d/htdocs/expensereport/card.php#L2210

Two lines before this line, did you try to set MAIN_DISABLE_PDF_THUMBS to 1 to see what it does ?

Edit : it does nothing more, i've created a PR.

Tested. The preview won't work with this option set to 1

[Vaadasch]

On this line : https://github.com/Dolibarr/dolibarr/blob/0ceacfdc6a40dfbe84317d9477c37a84dbdfe8f9/htdocs/expensereport/card.php#L2234

Change

		// If the preview file is found
		if (file_exists($fileimage)) {
			$thumbshown = 1;
			$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
			print '<a href="'.$urlforhref['url'].'" class="'.$urlforhref['css'].'" target="'.$urlforhref['target'].'" mime="'.$urlforhref['mime'].'">';
			print '<img height="'.$heightforphotref.'" class="photo photowithmargin photowithborder" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=apercu'.$modulepart.'&amp;file='.urlencode($relativepathimage).'">';
			print '</a>';
		}
	}
}

if (!$thumbshown) {
	print img_mime($ecmfilesstatic->filename);
}

By :

		$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
		print '<a href="'.$urlforhref['url'].'" class="'.$urlforhref['css'].'" target="'.$urlforhref['target'].'" mime="'.$urlforhref['mime'].'">';
		// If the preview file is found we display the thumb
		if (file_exists($fileimage)) {
			print '<img height="'.$heightforphotref.'" class="photo photowithmargin photowithborder" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=apercu'.$modulepart.'&amp;file='.urlencode($relativepathimage).'">';
		}
		// Else, we display an icon
		else { 
			print img_mime($ecmfilesstatic->filename); 
		}
		print '</a>';

[Vaadasch]

The PR has been merged. @rqi14, can you close this one ?